A WFI storage tank is a purpose-built storage vessel designed to hold Water for Injection – an extremely pure type of water used in the pharmaceutical and biotechnology industries. WFI is primarily used in the production of medicines that are administered as injections or infusions. WFI is produced by distillation or reverse osmosis, followed by additional treatment, it must meet the strict requirements of pharmacopeia standards such as USP (United States Pharmacopeia) and EP (European Pharmacopeia).
The requirements for storing this ultra-pure water are extremely high. Stainless steel WFI storage tanks are essential and reliable solutions for ensuring maximum hygiene and sterility in pharmaceutical manufacturing.
Do you have a question about our WFI storage tanks?
Engineered for hygienic WFI storage
In injectable drug production, contamination-free water storage that complies with international guidelines is essential, since patient health depends on it. Our WFI storage tanks are engineered to deliver maximum safety, process reliability, and long-term performance. These tanks combine premium materials, advanced monitoring systems, and complete documentation to integrate smoothly into pharmaceutical processes, ensuring both efficient operation and sterile conditions.
WFI applications across pharmaceutical processes
Stainless steel WFI storage tanks from Gpi are ideal for:
- Storage and distribution of WFI for injectable drug production
- Reliable supply within WFI loops, including return options for future expansion
- Hygienic and sterile cleaning processes with integrated spray balls
- Guaranteeing consistent water quality for safe and efficient pharmaceutical manufacturing
Custom-made for your installations
Every pharmaceutical production process is unique, which is why our WFI storage tanks are fully tailored to your requirements. Whether your system requires future loop returns for expansion, integrated spray balls for cleaning, or advanced gasket materials for maximum durability, we provide the ideal solution. Manufactured from robust stainless-steel with 3.1-certified contact parts to FDA-approved and USP Class VI-certified gaskets. Every detail is designed to ensure sterile and fully compliant operation.
Each tank is delivered with complete validation documentation, including welders’ logs, test and inspection plan, FAT protocol, finish measurements, and material certificates, ensuring smooth integration into your system and full compliance with pharmaceutical standards.
Key advantages of Gpi stainless steel WFI storage tanks
Our WFI storage tanks are designed to meet the highest standards of safety, hygiene, and process reliability. Key features include:
- Premium materials and certifications: Constructed from high-quality stainless steel with 3.1-certified contact parts. FDA-approved gaskets and USP Class VI certification for high-temperature applications (up to 121°C)
- Hygienic design and finishing: All welds are ground smooth and the inside surfaces are electro-polished for an ultra-smooth surface that minimizes microbial growth. Fully insulated for temperature stability and energy efficiency
- Advanced monitoring and control: Equipped with temperature transmitters, level switches, pressure transmitters, and angle seat valves for precise regulation and safe operation
- Comprehensive safety systems: Connections for compressed air blanketing, venting, rupture discs, and pressure converters protect against contamination risks and overpressure
- User-friendly inspection and maintenance: Manhole with safety switch, sight glass, and light glass allow for easy inspection and maintenance access
- Flexibility and scalability: Designed with future loop returns, enabling system expansion without major modifications
- Robust and durable construction: Engineered to withstand demanding pharmaceutical environments while ensuring long-term reliability
- Full validation documentation: Including welders’, test and inspection plan, FAT protocol, finish measurements and material certificates, ensuring smooth integration into your system and full compliance with pharmaceutical standards.
Your partner for reliable WFI storage
At Gpi, we design and manufacture stainless steel WFI storage tanks that guarantee hygiene, reliability, and compliance with the strictest pharmaceutical standards. Whether you are building a new facility or upgrading existing systems, our tailor-made solutions provide safe storage and distribution of Water for Injection.
Contact our experts today for tailored advice and a solution specially designed to integrate seamlessly into your pharmaceutical production process.
FAQ
What is a WFI storage tank and why is it used in pharmaceutical manufacturing?
WFI storage tank stores Water for Injection, an ultra-pure water grade required for injectable medicines and infusions. Because this water must meet strict pharmacopoeia standards such as USP and EP, specialised stainless steel tanks are essential to maintain the hygiene and sterility that pharmaceutical manufacturing demands.
What certifications and materials are used in Gpi WFI storage tanks?
All tanks are built from high-grade stainless steel with 3.1-certified contact parts. Gaskets are FDA-approved and USP Class VI-certified, suitable for temperatures up to 121°C. Internal surfaces are electro-polished to minimise microbial growth, and full insulation ensures stable process temperatures throughout operation.
What validation documentation is delivered with a WFI storage tank?
Every tank ships with a complete documentation package covering welders’ logs, a test and inspection plan, FAT protocol, finish measurements and material certificates — everything needed for a smooth GMP qualification process.
